QLS seminar by Léa Bresque - 19 April 2023 at 14:00 CET

[Quantitative Life Sciences]

Dear All,

On Wednesday, 19 April 2023 at 14:00 CET, Léa Bresque (Neel Institute, 
CNRS, Grenoble, France) will give a seminar titled:
*
**Hysteresis cycle and entropy production in a double-well *potential******

Abstract:

It was recently shown experimentally that resetting a single bit of 
information can be achieved at a work cost lower than Landauer's limit: 
k_B T ln(2), where T is the temperature of the environment [1]. This was 
achieved by generating a non-equilibrium steady state for the memory, 
itself encoded in the position of a particle jumping stochastically 
between the two wells of a double-well potential. When this double well 
potential is made of two adjacent harmonic potentials, the jump rates 
can be analytically obtained and the entropy production of each 
trajectory estimated. This allows for the quantification of the total 
entropy production generated during the erasure protocol.

In this seminar, I explain how this can be done and show experimental 
plots and preliminary results obtained in the case of an hysteresis 
cycle in the memory state.
I will then present new analytical results regarding gates performed on 
a massive flying particle.

[1] Stochastic thermodynamics : driving of micro-oscillators applied to 
the study and the optimization of information processing by Salambô 
Dago, Chapter 5, https://theses.hal.science/tel-03771837v1/document
___
The seminar will take place in the Common area, second floor, old SISSA 
building

_Indico webpage: https://indico.ictp.it/event/10334/_
_
You are all most welcome to attend!

Best regards,
Erica

-- 
Erica Sarnataro
Group Secretary
Quantitative Life Sciences
The Abdus Salam International Centre for Theoretical Physics (ICTP)
Trieste,  Italy
Tel. +39-040-2240623
www.ictp.it/research/qls.aspx
e-mail:qls at ictp.it